QED calculation of the n=1 and n=2 energy levels in He-like ions

A. N. Artemyev, V. M. Shabaev, V. A. Yerokhin +2

We perform ab initio QED calculations of energy levels for the $n=1$ and $n=2$ states of He-like ions with the nuclear charge in the range $Z=12$-100. The complete set of two-ele…